The Murphy Builders Site

Hey you think the the corn is tough you should have seen the railway embankment about 20 mtrs from where it came to rest




________________________________
From: "snowyrvr@mtaonline.net" <snowyrvr@mtaonline.net>
To: rebel-builders@dcsol.com
Sent: Wed, 30 June, 2010 21:43:02
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different Direction

Man, you guys have some tough corn over there!  Thanks for the info, Brian.
I have decided to let it be and see what happens.  Craig

Original Message:
-----------------
From: Brian Bridgewater ecomind@ymail.com
Date: Wed, 30 Jun 2010 07:25:13 -0700 (PDT)
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different
Direction


Hi Ken & Craig  I am Brian with Rebel No.274R in England  I really do agree
with "not strengthening"the U.C. legs I have just rebuilt mine after being
ripped off completely in a corn field with no damage to fuselage fittings
at all so no expensive hanger rebuild just made new U/C in garden shed at
home, if that is a design feature then well done Darryl



________________________________
From: Ken <klehman@albedo.net>
To: rebel-builders@dcsol.com
Sent: Wed, 30 June, 2010 13:27:48
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different
Direction

Craig
That sounds correct. The Mohr fittings replaced the short top inner tube
insert. I think somebody did insert tubes part way up at the bottom but
that is not common AFAIK. The bent legs that I've seen bend in the
bottom half. A bend is no big deal compared to a stronger part causing
damage to the fuselage instead of bending the leg but I do not know
where the optimum point is. A partial tube at the bottom will usually
increase stresses at the point that the tube ends which may not be a
good thing. Inserting a tube also risks that it will gall and get
permanently stuck part way in. A round full length tube insert might be
better if you decide to do this. A larger strut might be a better choice
if someone is determined to strengthen this part, but I have doubts
whether strengthening it is a good idea...
Ken

craig wrote:

Hmm...my legs are 1.25".  My inventory lists the upgrade.  I could have
missed the short tubes, I guess.  The Gordon Mohr fittings I used are 1"

and

they extend down the top of the leg about 4".  The lower part is without
reinforcement.  After I hear from some of the "SME's" here on the list I

may

have to retrofit the lower ends with some tubing, not a big job. though.
Thanks Ken


----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, June 29, 2010 3:36 PM
Subject: Re: [rebel-builders] Taking the Landing Gear Thread a Different
Direction

Never heard of that Craig??

However the upgrade to 1650 lb did involve increasing the main gear leg
to 1.25" square tube and inserting short 1" square tube pieces in the
top end to match the width of the fuselage brackets.

craig wrote:

A fellow Rebel owner was mentioning to me the fact that there is

supposed

to be a doubler (a second square tube) inside the main gear leg.  I

have

kit #207, purchased originally in 1992.  I looked in my 1998 version of
the manual and it lists this part.  My kit inventory list doesn't list
it.  Does anyone have info on this?  Should I be finding a tube to put
inside mine?  Sounds like I need to but I haven't seen a "doubler"
mentioned on this site that I can recall.  Anyone?  Craig

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